┌[swm@lamuella] [~]
└─╼$ LANG=en_US.UTF-8
┌[swm@lamuella] [~]
└─╼$ ip a show dev eth0
3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether b8:70:f4:e0:18:bd brd ff:ff:ff:ff:ff:ff
    inet 131.234.11.235/26 brd 131.234.11.255 scope global dynamic eth0
       valid_lft 381sec preferred_lft 381sec
    inet6 2001:638:502:811:100:f8d5:2995:a69b/128 scope global dynamic 
       valid_lft 493sec preferred_lft 268sec
    inet6 fe80::ba70:f4ff:fee0:18bd/64 scope link 
       valid_lft forever preferred_lft forever
┌[swm@lamuella] [~]
└─╼$ type pswuC 
pswuC is aliased to `ps --width=1000 u -C'
┌[swm@lamuella] [~]
└─╼$ pswuC dhclient
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root       590  0.0  0.1  14768  9692 ?        S    18:58   0:00 /usr/bin/dhclient -d -q -sf /usr/lib/networkmanager/nm-dhcp-helper -pf /var/run/dhclient-eth0.pid -lf /var/lib/NetworkManager/dhclient-e1ae4c0b-657b-4618-93a5-be25d555c02d-eth0.lease -cf /var/lib/NetworkManager/dhclient-eth0.conf eth0
root       607  0.0  0.1  14768  9804 ?        S    18:58   0:00 /usr/bin/dhclient -d -q -6 -N -sf /usr/lib/networkmanager/nm-dhcp-helper -pf /var/run/dhclient6-eth0.pid -lf /var/lib/NetworkManager/dhclient6-e1ae4c0b-657b-4618-93a5-be25d555c02d-eth0.lease -cf /var/lib/NetworkManager/dhclient6-eth0.conf eth0
┌[swm@lamuella] [~]
└─╼$ date="$(date --date='2015-04-18' '+%s')" && sudo sed -i "s/starts [0-9]\+;/starts $date;/" /var/lib/NetworkManager/dhclient6-e1ae4c0b-657b-4618-93a5-be25d555c02d-eth0.lease
┌[swm@lamuella] [~]
└─╼$ nmcli connection down 'Kabelnetzwerkverbindung 1'
Connection 'Kabelnetzwerkverbindung 1' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)
┌[swm@lamuella] [~]
└─╼$ nmcli connection up 'Kabelnetzwerkverbindung 1'
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/2)
┌[swm@lamuella] [~]
└─╼$ pswuC dhclient
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root      2391  0.1  0.1  14768  9768 ?        S    19:34   0:00 /usr/bin/dhclient -d -q -sf /usr/lib/networkmanager/nm-dhcp-helper -pf /var/run/dhclient-eth0.pid -lf /var/lib/NetworkManager/dhclient-e1ae4c0b-657b-4618-93a5-be25d555c02d-eth0.lease -cf /var/lib/NetworkManager/dhclient-eth0.conf eth0
┌[swm@lamuella] [~]
└─╼$ date="$(date '+%s')" && sudo sed -i "s/starts [0-9]\+;/starts $date;/" /var/lib/NetworkManager/dhclient6-e1ae4c0b-657b-4618-93a5-be25d555c02d-eth0.lease
┌[swm@lamuella] [~]
└─╼$ nmcli connection down 'Kabelnetzwerkverbindung 1'
Connection 'Kabelnetzwerkverbindung 1' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/2)
┌[swm@lamuella] [~]
└─╼$ nmcli connection up 'Kabelnetzwerkverbindung 1'
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/3)
┌[swm@lamuella] [~]
└─╼$ pswuC dhclient
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root      2551  0.0  0.1  14768  9804 ?        S    19:35   0:00 /usr/bin/dhclient -d -q -sf /usr/lib/networkmanager/nm-dhcp-helper -pf /var/run/dhclient-eth0.pid -lf /var/lib/NetworkManager/dhclient-e1ae4c0b-657b-4618-93a5-be25d555c02d-eth0.lease -cf /var/lib/NetworkManager/dhclient-eth0.conf eth0
root      2607  0.5  0.1  14768  9796 ?        S    19:35   0:00 /usr/bin/dhclient -d -q -6 -N -sf /usr/lib/networkmanager/nm-dhcp-helper -pf /var/run/dhclient6-eth0.pid -lf /var/lib/NetworkManager/dhclient6-e1ae4c0b-657b-4618-93a5-be25d555c02d-eth0.lease -cf /var/lib/NetworkManager/dhclient6-eth0.conf eth0

